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efectuati [tex]5 \frac{2}{5} +3 \frac{7}{10} -4 \frac{4}{15} =[/tex]

Răspuns :

5 2/5+3 7/10- 4 4/15 =
27/5+ 37/10 -64/15 =
(162+111-128)/30=145/30=29/6